Isidore vs Isidra

Babies given each name, 1880–2025

Isidore Isidra

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Of the 137 years in which either name was published, Isidore for 109 years and Isidra for 28 years. The lead changed hands 22 times.

• 1881–1972 Isidore ahead, apart from 2 short spells
• 1973–1995 Isidra ahead, apart from 3 short spells
• 2006–2025 Isidore ahead, apart from one short spell

14 shorter spells of a year or two are folded into the spans above rather than listed separately.

Side by side

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Isidras alive today are over 46; half the Isidores are over 23. That is 23 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

• Isidore New York (12.5×), Pennsylvania (0.3×)
• Isidra Texas (13.0×)

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Compare something else

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